What is the significance of spanish flu

In 1918, a new influenza virus emerged to cause a pandemic that in a two-year period about 500 million people or one-third of the world's population became infected with this virus and at least 50 million people worldwide died the greatest influenza mortality in recorded history

Explanation:

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for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

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